Finding the Fourth Proportional to 3,713.10, 5,123.01 and 2,140.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,713.10 : 5,123.01 = 2,140.89 : x
2. Step 2: Convert to fraction form
   3,713.10/5,123.01 = 2,140.89/x
3. Step 3: Cross multiply
   3,713.10x = 5,123.01 × 2,140.89
4. Step 4: Simplify right side
   3,713.10x = 10,967,800.88
5. Step 5: Solve for x
   x = 10,967,800.88/3,713.10
6. Step 6: Final answer
   x = 2,953.81